1. Làm thế nào để chúng ta có thể nhận biết được giá trị của một hàng hóa, giá trị hàng hóa biểu hiện ra bên ngoài như thế nào?

2. Khi tiền tệ xuất hiện thì quá trình trao đổi hàng hóa được diễn ra theo chu kỳ như thế nào?

3. Để có thể rút khỏi lưu thông đi vào cất trữ thì tiền đó phải đảm bảo yêu cầu nào?

4. Khi tiền xuất hiện thì tiềnđược dùng để chi trả như thế nào, và quá trình này có ưu điểm gì so với trao đổi hàng với hàng?

5. Khi hội nhập quốc tế thì tiền tệ đóng vai trò như thế nào? 

\(cos3x=sin\left(x+\dfrac{\sqcap}{4}\right)\)

Đề bài 1: Phong cách sống ngất ngưởng của NCT qua bài hát nói.

Đề bài 2: Ý nghĩa tích cực của phong cách sống ngất ngưởng của NCT trong bài hát nói. Theo anh/chị, ngất ngưởng khác với lối sống lập dị, sống gấp như thế nào?

mọi ng giúp mk vs mk cần gấp

giải phương trình \(3cos^24x+5sin^24x=2-2\sqrt{3}sin4xcos4x\)

mọi ng giúp mk vs

Hoàn thành câu dùng từ gợi ý đã cho.

1. Tonight/she/participate/party/hours/because/today/be/friend’s birthday.

……………………………………………………………………………………………………………………………..

2. It/not/stand/there/by/time/you/see it.

……………………………………………………………………………………………………………………………..

3. They/read/books/whole/day/prepare/their test.

……………………………………………………………………………………………………………………………..

4. Father/fix/his/bike/whole/afternoon.

……………………………………………………………………………………………………………………………..

Bài 4: Read about Colin. Then tick the sentences which are true. In each group of sentences at least one is true.

Colin goes to work everyday. He leaves home at 8 o'clock and arrives at work at about 8.45. He starts work immediately and continues until 12.30 when he has lunch (which takes about half an hour). He starts work again at 1.15 and goes home at exactly 4.30. Every day he follows the same routine and tomorrow will be no exeption.

At 7.45

a, He'll be leaving the house b, He'll have left the house

c, He'll be at home d, He'll be having breakfast

At 8.15

a, He'll be leaving the house b, He'll have left the house

c, He'll have arrived at work d, He'll be arriving at work

At 9.15

a, He'll be working b, He'll start work

c, He'll have started work d, He'll be arriving at work

At 12.45

a, He'll have lunch b, He'll be having lunch

c, He'll have finished his lunch d, He'll have started his lunch

At 4 o'clock

a, He'll have finished work b, He'll finish work

c, He'll be working d, He won't have finished work

At 4.45

a, He'll leave work b, He'll be leaving work

c, He'll have left work d, He'll have arrived home

Bài 3: Chọn đáp án đúng

Question 1. I hope it ________ (stop) working by 5 o'clock this afternoon.

A. will have stopped B. will have been stopping

Question 2. By next month I ______ (leave) for India.

A. will have left B. will have been leaving

Question 3. The film _______ (end) by the time we get there.

A. will have ended B. will have been ending

Question 4. They _______ (build) a house by June next year.

A. will have built B. will have been building

Question 5. I'm sure they _______ (complete) the new road by September.

A. will have complete B. will have been completing

Question 6. A In two years from now, the contract ________ (come) to an end.

A. will have come B. will have been coming

Question 7. By the end of December, John ________ (work) as a reporter for ten years.

A. will have worked B. will have been working

Question 8. By the time you arrive, I ________ (finish) writing an essay.

A. will have finished B. will have been finishing

Question 9. He certainly _______ (not/do) all his homework by ten tonight.

A. won't have done B. won't have been doing

Question 10. By November I _____ (work) for this company for 6 years.

A. will have worked B. will have been working

Question 11. By March 15, I ______ (be) here for one year.

A. will have been B. will have been being

Question 12. By this time next week, he ______ (write) his novel for 6 months.

A. will have written B. will have been writing

Question 13. You _______ (finish) your work by 9 tonight?

A. Will have you finished B. Will have you been finishing

Question 14. By 2013 we ______ (live) in London for 14 years.

A. will have lived B. will have been living

Question 15. He _____ (write) a book by the end of the week.

A. will have written B. will have been writing

Question 16. He ______ (write) this book for 3 months by the end of this week.

A. will have written B. will have been writing

Question 17. _________ (finish/you) this project by next week?

A. WIll you have finished B. Will you have been finishing

Question 18. ________ (be/she) pregnant for 5 month this week?

A. Will she have been B. Will she have been being

Question 19. An hour from now I hope I ______ all these exercises. We will all go to the beach then. (to do)

A. will have done B. will have been doing

Question 20. When I get my diploma in 2008, I ______ (to live) in Hanoi for 2 years.

A. will have lived B. will have been living